I upgraded to Norton 360.
In my earlier version of norton, underneath the Norton->Cards&Logins selection, there was a Configuration window at the top of the list of Log-ins. This window allowed a simple overview of all Log-ins, and an easy-to-use interface where they could be managed.
This is now gone in Norton 360.
It may be the case that it has been moved elsewhere, but certainly it is not within Mozilla itself, which seems to me the most obvious place to locate it, even if it does also exist elsewhere.
Can you send a message to your dev guys to wake up. I do not expect to pay over £50 for a product and to lose features. I imagine it's a fairly junior task to list down the features of the old software - did you get one of the interns to do it ? just appalling tbh.